Flat-iron.



N0. 680,367. Patented Aug. I3, IQDI. T. D. STEWART.

' F L A T l R N.

(Applicatioxr led Sept. 28, 1899.)

(No Model.)

i lui-:l i un ATENT erica@ THOMAS D. STEWART, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE.

ASSIGNMENTS, TO TIIE RYDER MANUFACTURING COMPANY,

BINGHAMTON, NEW' YORK.

FLAT-IRON.

SPECIFICATION forming part of Letters Patent No. 680,367, dated August 13, 1901.

Application led September 28, 1899. Serial No. 731,977. (No model.)

To all whom it' 'may concern:

Be it known that I, THOMAS D. STE WART, a citizen of the United. States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Flat-Irons, of which the following is a specification.

The present invention relates to that class of flat-irons that are heated by a gas-burner disposed within the body of the iron and connected by a exible tube with some suitable gas-suppl y.

The object of the invention is to provide an improved iron of -this class, and to this end I have devised the several features of novelty that are hereinafter fully described and in which the present invention resides.

- and a rest therefor embodying the invention.

Fig. 2 is a transverse section thereof on the line 2 2, Fig. 1. Fig. 3 is a section of the burner on the line 3 3, Fig. 1.

The body of the iron is made of two castings, o'neof which is hollow and comprises the bottom A, the rear wall B, and the side walls C and D, which converge and meet at the front of the iron, and the other of which consists of a plate E, which is secured to the hollow casting by means of bolts F. Interposed between the hollow casting and the plate E is a sheet G, of asbestos or other material which is a non-conductor of heat., the

- plate E being provided with a downwardlycontact with the band of the user, the plate E is provided above said openings with a horizontal ilangeE', which serves to deiiect the issuing products of combustion and direct them away from the hand of the user. The inner surface of the bottom A is corrugated for the purpose of providing a maximum area for the absorption of heat from the burner. The burner is of the Bunsen type and comprises a pipe II for the discharge of gas into a neck I, provided with openings z', through which the issuing ourrentof gas draws a su fiicient quantity of air to form a combustible mixture, a combined mixing and heating chamber J, and a burner proper, K, which preferably takes the form of a tube or tubes having perforations kin their under sides, so that the dame is directed downward against the corrugated .bottom of the iron. The burner is inserted through an opening in the rear wall of the iron and is held -in place 'therein by a set-screw L, having a tapering point, which engages a depression in the topA the side and at its lower end in a practically horizontal position. Through its front Wall is formed one or more threaded openings, the number depending upon the number of burners proper, K, that are to be used, and each of these burners is screwed into one ot' these openings. The bore of the tube forming the burner is flared at its intake end, as shown more clearlyin Fig. 3, and its Haring surface is flush and merges with the curved inner surfaces of the mixing and heating chamber. Regardless of the number of burners K that are used the mixing and heating chamber is preferably enlarged laterally in the vicinity of its outlet opening or openings, so as to provide a chamber of greater capacity than the capacity of the burner K, and thus temporarily arrest the mixture of gas and air in the chamber and enable it to become thoroughly mixed and to a certain extent heated. Where more than one burner K is used, the intervening portion J' of the front wall of the chamber is made of convex shape, as shown in Fig. 3, so as to avoid an abrupt flat surface against which the mixture would otherwise strike and' by which it would be broken up into irregular currents. In addition to the upward and downward curvature of the mixing and heating chamber it is also curved or deflected laterally or toward one side of the iron, as shown in Figs. 2 and 3, in order that it will not be in the way of the arm of the operator.

The burner as a whole is removable from the iron, and when it is desired to do so it maybe arranged on the iron-rest M, with the perforations 7c presented upward, and in this use of it the burner and rest constitute, in effect, a gas-stove. To this end the rear side ofthe rest is depressed, as shown at m, to form a seat forthe mixing and heating chamber J, and the front portion of the rest is provided with a similar seat m for the forward end of the burner proper, K, this arrangement of the burner being indicated by dotted lines in Figs. 1 and 2.

What I claim as new, and desire to secure by Letters Patent, is-

l. A [iat-iron having a hollow body and a burner disposed therein, said burner having a combined mixing and heating chamber, said chamber being curved upward and downward so that its upper end is practically vertical while its lower end is practically horizontal, and provided with an outlet for gas, said chamber being also gradually enlarged toward its outlet, substantially as set forth.

2. A lat-ironhaving a hollow body, and a burner disposed therein, said burner comprising the gas-pipeH, the neck I having airopenings, the mixing and heating chamber J curved upward and downward and also toward one side, said chamber being provided at its lower end with an outlet for gas and being enlarged toward said outlet, and the tube K communicating with the outlet of the mixing and heating chamber and provided with openings for the discharge of the gas, substantially as set forth.

THOMAS D. STEWART.

W`itnesses:

L. M. HOPKINS, A. B. PATRICK. 

